Financial Risk Management Activities - Schedule of Derivative Transactions Designated and Effective as Cash Flow Hedges (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Derivative Instruments and Hedging Activities Disclosures [Line Items] | ||
| Unrealized Gain (Loss) on Cash Flow Hedging Instruments | $ (27) | $ 28 |
| Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion | 1 | 3 |
| Interest Rate Swap [Member] | ||
| Derivative Instruments and Hedging Activities Disclosures [Line Items] | ||
| Unrealized Gain (Loss) on Cash Flow Hedging Instruments | (27) | 28 |
| Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion | $ 1 | $ 3 |